I found a website k6.io which allows you to load test websites and API’s using AWS. With a free account you can test from one location with 50 virtual units for up to 12 mins. Spinning up a load test of get requests, Cloudflare served up all the traffic no problem, leaving my minimal VPS web-server alone. Then I tried again with post requests and BAM… 100% CPU load, response time over 6 seconds.

What was happening? Shouldn’t Cloudflare stop things like this?

According to my page revision history, 9 months ago I started writing a guide on using Cloudflare as a free CND for websites. I’m sure I’ll finish that eventually, but for now here is why I think it is so great. Free load balancing!

CloudFlare had a great April Fools Day joke, they were creating two new public DNS servers. Except it wasn’t a joke, they have really created them, with highly memorable addresses:

• 1.1.1.1
• 1.0.0.1
• 2606:4700:4700::1111
• 2606:4700:4700::1001

Ok, so IPV6 addresses aren’t as memorable…